Lock for necklaces



March '3, 1931. MADSEN 1,794,384

LOCK FOR NECKLACES Filed March 20, 1930 Patented Mar. 3, 1931 'NtranCHRISTIAN MADSEN, or nnonx, new-YORK I LOCK roe NECKLACES Applicationfiled March 20, 1930. Serial No. 437,464.

This invention relates to new and useful improvements in means forengaging, locking and fastening together the sections comprising thechain or string-portions of ornamental jewelry, especially such as arecommonly worn by ladies, and the said device has in this connectionparticularly application to a ladies necklace.

It is a well known fact, that the locks of said necklaces, or the meansof fastening the chain-parts together in locked position, are at presentof a construction, which only too frequently causes the loss of suchnecklaces, as the snap fasteners or locking means .15 will part Withoutany warning to the wearer, the necklace simply falling to the groundunobserved.

This condition is especially deplorable where necklaces of greatvalueare involved. However, the loss and discomfort caused by inefi'icientlocking means in the above respect has only lately been aggravated bythe fact that at present especially heavy strings of beads or pearls arenow worn by ladies as a vogue.

It is for the purpose of remedying the above faulty conditions, that Ihave constructed my device, which o'fiers a safe guar- 'anty against anyuntimely opening of the locking or fastening members of a necklace. Asthe construction of my device is rather simple the costof manufacturingshould be proportionately low.

With the above and other objects in view, this invention consists of thenovel features of construction, combination and arrangement of parts,hereinafter fully described,

claimed, and illustrated in the accompany 4 ing drawings forming partsof this specifireference indicate corresponding parts in all views, andin which: '1 t Figure 1 shows my device in elevation, connected to aportion of a chain as part of a necklace q 7 Figures 2 and 3 are topplan views of the members constituting my device; 7

Figure 1 is a side elevational view of one of said members, the othermember being shown in dotted lines; while cation, and in which similarcharacters of Figure 5is a view substantially similar to i igure i, butshown in section.

" "Referring more particularly to the drawin.gs, 1O indicates part of anecklace to which are connected the respective locking members 11 and12, in a manner as shown,- especially in Figures'2 and f 1 f The member11 comprises an annular ring portion 13; to the latterispivotallyconnect ed a lever 14 by means of a screw 15. The said leverhas one end terminatedin a substantially circular disc 16 of a sizealmost equal to the central opening of said annular ring portion 13.

The other end portion of the said lever 14, terminates in an eyelet 17adapted for engagement with the chain 10 of the necklace.

The member 12 consists of a bar 18 havmg an eyelet 19 for engagementwith the chain 10. i j

In looking a necklace by means of the said fastening members 11. and 12,it is only necessary to insert the bar 18 through the central opening ofthe annular ring-portion 13. The weight of the chain or necklace properwill then exert a pull on the eyelet 17 of the level 14 with the resultthat the opposite end of the said lever, or disc portion' 16 descendstightly upon, or presses against, the bar 18 of the member 12, therebyabsolutely preventing any disengagement of the said members 11 and 12. i

It wil be obvious that the stronger the pull,

.whieh may be exerted, is upon the lever 14,

the more tightly will bethe grip, which is exercised by the disc portion16 upon the bar18.

It is obvious that changes may be made in the form, construction andarrangement of the several parts, as shown, within the scope of theappended claims, without departing from the spirit of the invention, andI do not therefore wish to limit myself to the construction andarrangement shown and described herein.

-VVl1at I claim as new, and desire to secure by Letters Patentof theUnited States, is:

1.- A fastening device adapted for attachmentto the opposedends of anencircling element, and the said device'having a marginal ring element,a clamping disc pivotally mounted on the said ring element and having aprotruding eyelet member, which member acts as a lever to actuate thesaid disc, an insertable bar adapted to rest between the said disc andthe ring element, and an eyelet member on thesaid bar adapted to passunder the said ring element.

2. In afastening device of the character described, a ring elementhaving pivot bearing members on the margin thereof, a disc memberconcentric to the said ring element and having its diameter smaller thanthe inner margin of the said ring element, an eyelet member on the saiddisc and the said eyelet member attached Within the aforesaid pivotbearing members, a bar element having an eyelet member thereon, and thesaid bar element insertable between the said disk member and themarginal portions of the said ring element.

Signed at New York city, in the county of New York and State of NewYork, this 12th day of March, A. D. 1980.

1 CHRISTIAN MADSEY.

